/Engine/Source/Runtime/CoreUObject/Public/UObject/UObjectGlobals.h
Called by ReloadPackage during package reloading. It will be called several times for different phases of fix-up to allow custom code to handle updating objects as needed
typedef TMulticastDelegate_TwoParams< void, EPackageReloadPhase, [FPackageReloadedEvent](API\Runtime\CoreUObject\UObject\FPackageReloadedEvent) * > FOnPackageReloaded